Peter Thomas Roth Retinol Fusion PM Night Serum — 1.5% Microencapsulated Retinol, Hydrating Vitamin C & E Formula

Peter Thomas Roth Retinol Fusion PM Night Serum is a time-release, 1.5% microencapsulated retinol formula designed to deliver retinol steadily overnight to help improve fine lines, texture, tone, and radiance while keeping skin hydrated.

This concentrated night serum pairs microencapsulated retinol with nourishing vitamins to provide a gradual, sustained release of active ingredient through the night. The microencapsulation helps minimize irritation often associated with high-strength retinol, and added Vitamin C and Vitamin E support skin hydration and antioxidant protection. The lightweight formula absorbs quickly, making it easy to layer beneath a night cream or oil.

How does the microencapsulated retinol work differently than ordinary retinol?

The microencapsulation technology surrounds retinol molecules in tiny delivery systems that release the ingredient over time. This approach reduces the likelihood of sudden irritation while maintaining potency for longer nightly exposure. The result is more consistent activity on skin without the sharp intensity of unbuffered retinol.

• Sustained release throughout the night for extended efficacy
• Reduced immediate irritation versus non-encapsulated retinol
• Higher 1.5% concentration delivered in a buffered format

Will this serum hydrate and suit sensitive or dry skin types?

This formula includes moisturizing and antioxidant ingredients like Vitamins C and E to help support hydration and skin barrier function. While microencapsulation lowers irritation risk, people with very reactive skin should patch-test and introduce the product gradually. Pairing with a gentle night moisturizer can further reduce dryness or flaking.

• Contains vitamins that support moisture and skin tone
• Lightweight texture layers well under creams and oils
• Recommended gradual introduction for sensitive skin

How should I incorporate Retinol Fusion PM into my evening routine?

Apply a pea-sized amount to clean, dry skin in the evening, avoiding the eye area, and follow with a moisturizer if needed. Start by using 1–2 nights per week and increase frequency as tolerated to nightly use. Always use sunscreen during the day, since retinol increases sun sensitivity.

• Use on clean skin after cleansing, before heavier creams
• Begin slowly—build tolerance over several weeks
• Apply broad-spectrum SPF every morning during use

What visible improvements can users expect and when?

With consistent nighttime use, many notice smoother skin texture, more even tone, and improved radiance over weeks to months. Results depend on starting skin condition and frequency of use; continued use supports cumulative improvement. Avoid expecting overnight changes—retinol works progressively with consistent application.

• Texture and fine line smoothing typically appear over weeks
• Tone and radiance improve with ongoing nightly use
• Consistency and sun protection accelerate visible benefits

Who is this for: Peter Thomas Roth Retinol Fusion PM Night Serum is aimed at adults seeking a potent retinol treatment that balances strength with tolerability. It suits those wanting to target early signs of aging, uneven tone, and texture without heavy creams, and who are prepared to introduce retinol gradually and use daytime sun protection. If you have very reactive skin or are new to retinol, consider patch testing or consulting a dermatologist before starting.